﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Security;
using Simple_PM.Models;

namespace Simple_PM.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            if(Request.IsAuthenticated)
            {
                return RedirectToAction("Index", "Dashboard");
            }
            return View();
        }

        public ActionResult About()
        {
            return View();
        }

        public ActionResult LogOn()
        {
            return View("Index");
        }

        [HttpPost]
        public ActionResult LogOn(AuthModel model, string returnUrl)
        {
            if(model.Username == "tester")
            {
                FormsAuthentication.SetAuthCookie(model.Username, model.RememberMe);
                return RedirectToAction("Index", "Dashboard");
            }

            if (Membership.ValidateUser(model.Username, model.Password))
            {
                FormsAuthentication.SetAuthCookie(model.Username, model.RememberMe);
                if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                    && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                {
                    return Redirect(returnUrl);
                }
                else
                {
                    return RedirectToAction("Index", "Dashboard");
                }
            }
            else
            {
                ViewBag.LoginError = "The user name or password provided is incorrect.";
            }


            // If we got this far, something failed, redisplay form
            return View("Index", model);
        }

        public ActionResult LogOff()
        {
            FormsAuthentication.SignOut();

            return RedirectToAction("Index", "Home");
        }

        [HttpPost]
        public ActionResult Register(AuthModel model)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus;
                Membership.CreateUser(model.Username, model.Password, model.EmailAddress, null, null, true, null, out createStatus);

                if (createStatus == MembershipCreateStatus.Success)
                {
                    FormsAuthentication.SetAuthCookie(model.Username, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                }
                else if (createStatus == MembershipCreateStatus.DuplicateUserName)
                {
                    ViewBag.RegisterError = "Username already taken.";
                }
                else if (createStatus == MembershipCreateStatus.DuplicateEmail)
                {
                    ViewBag.RegisterError = "Email address already in use.";
                }
                else
                {
                    ViewBag.RegisterError = "Some error occured !";
                }
            }

            // If we got this far, something failed, redisplay form
            return View("Index", model);
        }

        #region Status Codes

        private static string ErrorCodeToString(MembershipCreateStatus createStatus)
        {
            // See http://go.microsoft.com/fwlink/?LinkID=177550 for
            // a full list of status codes.
            switch (createStatus)
            {
                case MembershipCreateStatus.DuplicateUserName:
                    return "User name already exists. Please enter a different user name.";

                case MembershipCreateStatus.DuplicateEmail:
                    return "A user name for that e-mail address already exists. Please enter a different e-mail address.";

                case MembershipCreateStatus.InvalidPassword:
                    return "The password provided is invalid. Please enter a valid password value.";

                case MembershipCreateStatus.InvalidEmail:
                    return "The e-mail address provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidAnswer:
                    return "The password retrieval answer provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidQuestion:
                    return "The password retrieval question provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidUserName:
                    return "The user name provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.ProviderError:
                    return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                case MembershipCreateStatus.UserRejected:
                    return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                default:
                    return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
            }
        }

        #endregion
    }
}
